ＯＰＥＲＡＴＩＯＮ ＭＡＮＵＡＬ ＯＦ ＶＥＲＴＩＣＡＬ ＳＨＡＦＴ ＰＵＭＰＤＲＹ ＰＩＴ ＴＹＰＥ

●THANK YOU FOR YOUR PURCHASE OF NISHIGAKI PUMP．
PLEASE READ THIS MANUAL THOROUGHLY BEFORE USING YOURPUMP．
●PLEASE ARRANGE FOR THIS MANUAL TO BE READILY AVAILABLE
TO THE PERSONNEL OPERATING THIS PUMP．
●PLEASE KEEP THIS MANUAL IN A PLACE WHERE IT IS READILYAVAILABLE．

ＮＩＳＨＩＧＡＫＩ． ＰＵＭＰ． ＭＦＧ． ＣＯ．， ＬＴＤ．
ＨＣ３−４８８1

Danger: Please never do the following usages.
1. To do carrying, installing, plumbing, wiring, operating, maintaining
and inspecting is to be done by qualified personnel in a safe manner.
Improper acting can result in injury, electrical shock or fire.
2. To do the above with a pump being wired, shut off the power supply
for fear of electrical shock or fire.
3. Keep away from rotating parts during operation for avoiding injury.
4. Do not enter any fingers or objects into portion of the opening.
5. Be sure to give careful consideration to turn on the operation
switch. Otherwise it can cause damage others.
Warn: Please do not do the following usages.
1. Do not do dry operation or reverse rotation. The pump interior could
be damaged due to water hammer or heat.
2. Do not enter foreign materials in the pump. It can damage thepump or burn out the motor.
3. Do not convert the pump without permission. An accident can beoccurred.
4. Do not use column pipes for supporting other pipes. It can twist or
bend pump parts due to low intensity.
5. Be sure to give careful consideration to unpack the wooden box forremoving strip of staples or nails.
6. Turn off the power supply in case of electric power failure. Be sure
to use automatic return mechanism with safety.
Attention: In the following cases, please note it.
1. When lubricating oil makes a problem (i.e. at food industry), use thepump after washing out the oil.
2. Always wear gloves when dismantling a pump, and be careful of
sharp edges and corners which could cause lacerations.
3. When carrying or lifting the pump, be careful of nipping physicalbody.

2

Check :After removing the pump from its packing,perform the following inspection:(1) Verify that there has been no in-transit damage
to the wooden frame or package.
(2) Verify that there has been no unusual crack andmodification on the pump or unit.
(3) Verify that there have been no nuts or bolts
have come loose.
(4) On top of that, verify the things considered tobe unusual.
Transportation and installation ：＊ As this pump is intended to be used vertically,please convey and transport the pump as
vertically as possible.
＊ A Column pipe (009) and a lifting pipe (139)have not enough endurance to support
horizontal load. Be sure not to use them as abeam or support.
＊ Use wooden frame for custody or conveyance ofpump lying on its side.
（１） The pump is to be hung from wire using
eyebolts on the four corners of the frame (602).
(There is no eyebolt with light weight pump.)（２） When wire is interfering with an electricmotor, prevent the motor from damaging by
rag or battens. (There is no certainty that thecenter of gravity is on the frame. Reinforce
with other wire depending on configurations.)（３） The pump foundation should be set in ahorizontal position and have enough rigidity.
Fix the frame (602) firmly to the foundation atfour corners of the frame.
（４） Adjust the frame (602) exactly in a horizontal
position using a spirit level.
Reference a level: JIS B7510 3 kind(0.1)
3Pipe Arrangement ：＊ Seals adhered to the suction cover (010), thecasing (001), the column pipe (009), and thedischarge pipe (131) are for preventing themfrom foreign materials. Please get rid of allseals before using the pump.
＊ The suction cover (010) with the strainer (691)
is to be given careful consideration not to crush
the strainer (691) in inverted.
＊ Giving impact shock on the column pipe (009) or
the casing (001) by a hammer or whatever canbreak or bend the metal (069). Do not give
impact shock on them.
(1) Use pipeline support or flexible pipe so that thedischarge pipe (131) and the casing (001) do nottake pipeline load.
(2) Use a by-pass type check valve or slow closing
type one in order to prevent the pump fromwater hammer caused by back flow.
(3) Determine high and low water level in pit
according to the dimensional outline drawings.
(4) If a pipe from the balancing pipe (163) of dry pit
type was long, pay attention not to be stuck thepipe with slurry. To prevent that, for example,
1) make the pipe short. 2) The overflow pipeshould be laid in an ascent of more than 5/100
toward the pump.

4Operation ：※ At the beginning of the pump operation,
whole the casing (001), the metal (069) are to
be sunk into or filled with the liquid. Do not
perform any ‘dry’ operation avoiding water
hammer. To do so could result in damage tothe metal (069).
※ Do not perform ‘zero discharge operation’.
To do so could result in damage to thebearing by temperature rise or overflow.
※ Do not perform ‘full-bore operation’. To do so

could result in defective pumping
breaking the pump by air inclusion.

or(1) After wire connection finishes, check therotational direction on arrow label.
(2) Turn the motor and pump with your hand to be
sure it turns lightly and smoothly. [If thecontact noise of metal to metal came out, thepump has to be disassembled and checked.](3) Make a test run 2 or 3 times by inching, andcheck whether there is neither unusual noise
nor vibration in the pump. [Open 1/5 of thesluice valve.](4) Check the liquid filled with at least up to ‘lowwater level of pit (L.W.L)’ before operation.
(5) When the pump rotation speed come to thespecified speed, adjust the total head of thepump to its specified value gradually by
opening the sluice valve. [If the valve opens toomuch, it could result in aeration.](6) Check the current value of the motor less thanin a rated value.
(7) Adjust the pipes if there is any leaky pipe.

5Disassembling ：＊ Mach-marks with a permanent maker before
disassembly for your reference.
(1) Remove the suction cover (010) or the casing(001) from the pump. [Caution about the coveror the casing dropping](2) Remove impeller nuts (460) and washers (462).
[Loosen the nut with an impact wrench or withthe coupling (610) stabilized](3) Remove the impeller (020,021) and the impellerkey (470).
[Caution about the impeller dropping](4) Remove the shaft sleeve (031) from the shaft(030). [This line does not apply to non-metaltype](5) Remove the sealing pipe (320-1). [This line
apply to middle metal. ](6) Remove the casing (001) or the casing cover(011). [Some types of the casing (001) or thecasing cover (011) are combined with a columnpipe](7) Pick up the metal (069) out of the casing (001)or the casing cover (011). [This line does not
apply to non-metal type](8) Remove the column pipes (009-1 … )sequentially. [If there are other intermediate
metals on the shaft, remove the shaft sleeve(031) and the metal ](9) Loosen hexagon socket set screws of flinger(250), then pick the flinger from the shaft.
[This line apply to the pump protected fromvapor and heat ]When you change the ball bearing (060), refer tothe following procedures. [except for small sizepump.](10) Remove the motor (680) from the metal casing(040). [Be careful of wiring.]6(11) Remove the coupling (610) and the couplingkey (471). [Loosen the hexagon socket headbolts.](12) Remove the bearing cover (050) from themetal casing (040). [Be careful of oil flute.](13) Remove the bearing nut (480) from the shaft(030). [Be careful of the shaft dropping.](14) Remove the bearing with the bearing sleeve(483) and the bearing washer (484)simultaneously from the shaft.
(15) When the pump has the bearing box (043),
remove the bearing box (043) with jacking up
by bolts.
(16) Remove the bearing key (472), then remove
the adapter (684) from the shaft (030).
(17) Do (15) again.
(18) Remove the shaft (030) from the metal casing(040).
(19) Remove the oil seal (400,401,402)“When you change a discharge pipe or a liftingpipe (139,131), refer to the following procedures.
（20）Remove the discharge flange (131) and theflange packing (244) from the frame.
（21）Remove the discharge elbow (132) and thelifting pipe (139) from the frame.

7

Assembling ：＊ Refer to mach-marks and assemble in an ordercontrary to disassembling.
(1) The gap between the impeller (020,021) and thesuction cover (010) or between the impeller andthe casing is to be determined the following
data.
closed impeller
axial direction
2ｍｍradial direction φ0.6〜1.5

semi open impeller
0.5〜2ｍｍ
φ0.8〜2.0(2) If the gap between the metal and the shaft
sleeve more than φ0.3mm by worn out, change
The metal and the shaft sleeve for new one.
(3) An oil seal has suitable direction to set. Insert
the dust bellow side of the oil seal against theball bearing. [Grease the groove.](4) The gap in the coupling (610) to be between 3±1mm. [When the bearing sleeve (483) to bechanged, remove the spring of the oil seal for
prevention of over-heating.](5) For a pump type inserted a metal (069) into a
metal cover (099), the metal (SiC ： SiliconCarbide) (069) have to be installed within themetal cover (099) before setting the metal coverto the casing (001) or the column pipe (009). [Ifthe pump was assembled lying on the floor,
keep the shaft and the shaft sleeve straight andhorizontal. Because the shaft can be distorted
by its own weight. ]8

Maintenance ：(1) Grease No.2 is used as standard. Lubricate
every 2000 hours or every single year ofoperation. [Remove a drain plug, then lubricate
about 15g grease from a grease nipple with agrease pump.]When you change the ball bearing, use thegrease equivalents as follows,
NLG1-2
Bardahl … SPG-2 (Special-purpose grease)
IDEMITSU … Daphne Eponex grease
Showa-Shell … Shell Alvania grease(2) Silicone grease is used in unusual
circumstances.
Ref. [Toshiba TSK5422L, Shin-Etsu Chemical
G40H, ThreeBond 1855](When you use specialized pump, please ask adealer which grease is appropriate.)(3) Whenever you request any part for repair,please let the dealer know the product number.
Product number is unique and consists of 6
characters shown at the bottom line on thename plate.
(4) Do not give any shock to the metal and the shaft
sleeve.
(5) If fluid level in the tank was below theintermediate metal, and if the pump was not
liquid cooling type, pour external liquid into thepump before operation. Pour the external liquid
until rotating speed reach constant rate. Oncerotating speed come to constant rate, you don’t
have to pour more liquid. Because liquid
circulate by itself.
9(6) Keep the strainer clean and check it
periodically. The strainer blocked up objects
may crumple the punch metal of the strainer
due to vacuum.
(7) The overflow pipe (163) of dry pit type pumplimits to overflow onto the column pipe (009).
The inside of the pipe connected to the overflow
pipe (163) may cause scale buildup. The pumptest result table shows flow volume from theoverflow pipe (163). Adjust the flow volume
with discharge valve according to the table asmuch as possible. With the fluid may cause
trouble if air mixed, operate the pump except
for aeration range shown on the pump test
result tablｅ．

10Maintenance Check Record Table
Pump Model（Man． Serial No．）
Ｄａｔｅ

Record11Sign